Home / 151,135.64-208,596.96-86,648.16

Finding the Fourth Proportional to 151,135.64, 208,596.96 and 86,648.16

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Solution

The fourth proportional to 151,135.64, 208,596.96 and 86,648.16 is: 119,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,135.64 : 208,596.96 = 86,648.16 : x
  2. Step 2: Convert to fraction form
    151,135.64/208,596.96 = 86,648.16/x
  3. Step 3: Cross multiply
    151,135.64x = 208,596.96 × 86,648.16
  4. Step 4: Simplify right side
    151,135.64x = 18,074,542,765.59
  5. Step 5: Solve for x
    x = 18,074,542,765.59/151,135.64
  6. Step 6: Final answer
    x = 119,591.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.